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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: CCSD=FULL/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
Energy calculated at CCSD=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-207.480474
Energy at 298.15K 
HF Energy-206.817440
Nuclear repulsion energy103.363353
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at CCSD=FULL/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3167 3167 13.64      
2 A' 3063 3063 45.79      
3 A' 2321 2321 1199.33      
4 A' 1505 1505 1.84      
5 A' 1473 1473 12.07      
6 A' 1451 1451 40.17      
7 A' 1155 1155 26.35      
8 A' 899 899 27.67      
9 A' 662 662 30.21      
10 A' 178 178 20.18      
11 A" 3139 3139 18.67      
12 A" 1505 1505 5.72      
13 A" 1132 1132 0.54      
14 A" 602 602 21.18      
15 A" 53 53 1.56      

Unscaled Zero Point Vibrational Energy (zpe) 11151.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11151.6 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at CCSD=FULL/aug-cc-pVDZ
ABC
2.30616 0.14631 0.14134

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.406 1.010 0.000
N2 0.000 0.627 0.000
C3 -0.586 -0.438 0.000
O4 -1.277 -1.397 0.000
H5 1.464 2.106 0.000
H6 1.914 0.626 0.899
H7 1.914 0.626 -0.899

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.45732.46273.60371.09761.10111.1011
N21.45731.21542.39232.08132.11442.1144
C32.46271.21541.18133.26732.86192.8619
O43.60372.39231.18134.44733.88313.8831
H51.09762.08133.26734.44731.78841.7884
H61.10112.11442.86193.88311.78841.7972
H71.10112.11442.86193.88311.78841.7972

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 134.067 N2 C1 H5 108.274
N2 C1 H6 110.701 N2 C1 H7 110.701
N2 C3 O4 173.067 H5 C1 H6 108.859
H5 C1 H7 108.859 H6 C1 H7 109.399
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability